svn commit: r39189 - head/en_US.ISO8859-1/books/porters-handbook

Isabell Long issyl0 at
Fri Jul 13 12:45:28 UTC 2012


On 12 Jul 2012, at 16:05, Konstantin Belousov wrote:

> On Thu, Jul 12, 2012 at 02:12:49PM +0000, Isabell Long wrote:
>> +      <para>A number of simple syscalls (for example
>> +	&man.gettimeofday.2;, &man.getpid.2;) are much faster on
>> +	&linux; than on any other operating system due to caching and
>> +	the vsyscall performance optimizations.  Do not rely on them
>> +	being cheap in performance-critical applications.  In general,
>> +	try hard to avoid syscalls if possible.</para>
> And this is not quite true for HEAD and soon for RELENG_9.

Sorry, this came directly from a Google Code-In task done back in November that simply asked to transfer the info wiki -> SGML, which I did, and I don't have enough knowledge to check the current status of the things mentioned.  The task was just sat in the list, as it had been for months, so I decided to commit it.

Feel free to submit patches.  :-)


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